International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Dukjae Moon

Affiliation: NSRI (National Security Research Institute)

Publications

Year
Venue
Title
2015
EPRINT
2007
EPRINT
New FORK-256
The hash function FORK-256 was published at the ¯rst NIST hash workshop and FSE 2006. It consists of simple operations so that its performance is better than that of SHA-256. However, recent papers show some weaknesses of FORK-256. In this paper, we propose newly modi¯ed FORK-256 which has no microcoliisions and so is resistant against existing attacks. Furthermore, it is faster than the old one.
2006
FSE
2004
FSE
2003
EPRINT
Algebraic Attacks on Summation Generators
We apply the algebraic attacks on stream ciphers with memories to the summation generator. For a summation generator that uses $n$ LFSRs, the algebraic equation relating the key stream bits and LFSR output bits can be made to be of degree less than or equal to $2^{\lceil\log_2 n \rceil}$, using $\lceil\log_2 n \rceil + 1$ consecutive key stream bits. This is much lower than the upper bound given by previous general results.
2002
ASIACRYPT
2002
FSE